On Thu, Jun 27, 2019 at 08:17:08AM +0000, Damien Le Moal wrote: > > Are your sure that invalidate[|flush]_kernel_vmap_range is needed for > > bio_copy_kernel? The vmalloc buffer isn't involved in IO, and only > > accessed by CPU. > > Not sure at all. I am a little out of my league here. > Christoph mentioned that this is necessary. > > Christoph, can you confirm ?
Ming is right. Sorry for misleading you.
